Improvement in telegraph-relays



P. B. DELANY.

Telegraph Relay. No. 165,157. H"PanamaJu |y6,1875.

H'h W UNITED STATEs PATEN'I' ,i Orrroa PATRICK B. DEIJANY, OF JERSEY CITY, NEVV JERSEY.

IMPROVEMENT IN TELEGRAPH'R'ELAVS.

Speciiication forming part of Letters Patent No. 165,157, dated July G, 1875; application filed December 11, 1874.

To all 'whom tt may concer'n:

Be it known that I, PATRIOK B. DELANY, of Jersey City, State of New Jersey, have invented certain new and useful Improvements in Electro-filf'lagnets, more especially adapted for use as telegraphic relays, sounders, Smc.

The object of this invention is to furnish an electro-magnet which shall operate rapidly and with the least possible amount of frietional resistance. To this end it consists in snspending` a movable electro-magnetic eoil by a thread or wire over a fixed armature, the armature or core of the m'agnet being provided with rectangnlar extensions, so that the armature and core maybe brought into juXt-aposition, as isv more particularly hereinafter set out and claimed.

In order that those skilled in the art may be enabled the better to understand and to construct and use my invention, I will describe the same in detail, reference being had to the accompanying drawings forming part of this speciiication, in which Figure 1 is a plan view, Fig. 2 an end view, and Fig. 3 a side view, of a relay elnbodying my invention. i

Like letters refer to similar parts in all the figures.

H is a base of any suitable material. Upon this I seeurely fasten a bar or rod of iron, B, having its ends Z) b' bent outwardly and then npwardly at right angles, as shown 4in the drawings. A is an electro-magnetic eoil, having` extended poles a ct', preferably fiattened on opposite sides, as shown. Around this eoil is fitted a hoop, g, having on one side an extension, gl, forming a pivot, and upon the other a hook, g. This eoil is suspended by a cord, or wire, or thread, I), secured in hook g, from a screw, c, of a bent arm, O, which is attached to the base H, and which, after risin g to a suitable height, bends at right angles toward the armature-bar B, so that the screw a is over the center of B. A lower bearing is formed by the pivot 'g' taking into a suitablyformed bearing in armature B.

The armature B may be a plain piece of iron, but, by preference, I wind it, as shown in the drawings, with a continuation of the wire of the electromagnet eoil A, or so that both are' in the same Circuit, and so that when both are magnetized the adjacent ends of A attached to a' b'.

From this description the operation is evident. A current being' passed through the coils, as the armature is stationary, the eoil itself moves to the magnet by attraction, with the least possible amount of frietion.

It is evident that instead of the armature B being provided with uprights b b', it may be straight, the core of A being prolonged, and the parts a a' thereof being bent downwardly to the immediate vicinity of the ends of B. It is also evident that the parts Z) b', instead of being in different Vertical planes, as shown, may be in the same Vertical plane, their interior sides being beveled to afi'ord a good attracting-snrface parallel with the ends a a' of the core of A.

Having thus deseribed my invention, What I claim as new, and desire to secure by Letters Patent, is-

The combination, with a fixed armature, plain or electro-magnetic, of an electro-mag- 'netic coil, inovably suspended above the same,

snbstantially as herein shown 'and described.

PATRIOK B. DELANX.

Witnesses:

W. P. WEsrnRVEL'r, MAZE EDwARDs. 

